DO WILD BIRDS MATE FOR LIFE ? – GoBillyBird.com – backyard bird feeding & gardening
sparrows- they mate for life! | Love birds, Sparrow, Birds
Tree Sparrows - FiveFlamingos
Can male sparrows sense when their mates stray? | Daily Mail Online
Monogamy in Garden Birds - The Bird House
House Sparrow - food, nesting, distribution and other facts - Garden Birds
All about the House sparrow - GardenBird
House sparrow - Wikipedia
Sparrow Facts, Types, Diet, Reproduction, Classification, Pictures
The Natural History of Model Organisms: The house sparrow in the service of basic and applied biology | eLife
What Types of Birds Mate for Life? - Birds and Blooms
Till Death Do Them Part: 8 Birds that Mate for Life | Audubon
House sparrow - Wikipedia
Ivel Valley Wild Bird Food | What UK Birds Mate for Life? - Ivel Valley Wild Bird Blog
The house sparrow: nesting habits & behaviour - Saga
House Sparrows | AviAway Bird Control Services
The secret lives of sparrows – Grey Feather Photography Photography Blog
The more feathers a male sparrow carries to the nest, the more eggs the female will lay
The Wonderful World of the House Sparrow | Montana Public Radio
Are Sparrows good luck? - Garden Bird Feeder
All About the Sparrow: The Bird of Love – Gage Beasley
Why do older male birds father more illegitim | EurekAlert!
Who's the daddy? | BTO - British Trust for Ornithology
Song Sparrow vs. House Sparrow - AZ Animals
